Test-MsftAvailableSigninNames.ps1
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.SYNOPSIS Check sign-in name availablility for MSA creation .EXAMPLE Test-MsftAvailableSigninNames user@domain.com .EXAMPLE 'user1@domainA.com','user2@domainA.com','user@domainB.com' | Test-MsftAvailableSigninNames #> function Test-MsftAvailableSigninNames { [CmdletBinding()] [OutputType([PsCustomObject[]])] param ( # [Parameter(Mandatory = $true, ValueFromPipeline = $true, Position = 1)] [string[]] $SignInNames, # Suggest available names for outlook domains [Parameter(Mandatory = $false)] [switch] $IncludeSuggestions ) process { foreach ($SignInName in $SignInNames) { ## Get API parameter values $InitSessionResponse = Invoke-WebRequest -UseBasicParsing -Method Get -Uri 'https://signup.live.com/?lic=1' -SessionVariable 'WebSession' #$InitSessionResponse.Headers.'Set-Cookie' ## Extract API parameter values from response if ($InitSessionResponse.Content -match 'var t0=({.*})') { $t0 = ConvertFrom-Json $Matches[1] } ## Invoke API for provided sign-in name $uriCheckAvailableSigninNames = New-Object System.UriBuilder 'https://signup.live.com/API/CheckAvailableSigninNames' $Result = Invoke-RestMethod -UseBasicParsing -Method Post -Uri $uriCheckAvailableSigninNames.Uri.AbsoluteUri -WebSession $WebSession -Headers @{ canary = $t0.apiCanary } -ContentType 'application/json; charset=UTF-8' -Body (ConvertTo-Json @{ signInName = $SignInName includeSuggestions = $IncludeSuggestions.ToBool() uaid = $t0.uaid uiflvr = $t0.uiflvr scid = $t0.scid hpgid = $t0.cpgids.Signup_MemberNamePage_Client }) if ($Result.error) { ## Lookup errorCode $ErrorCodeResponse = Invoke-WebRequest -Method Get -uri 'https://acctcdn.msauth.net/lightweightsignuppackage__7LKxh3Z8DPGqZjdLup4dw2.js?v=1' -WebSession $WebSession if ($ErrorCodeResponse.Content -match '\$Config\.WLXAccount\.signup\.errorCodes=({.*})') { $errorCodes = ConvertFrom-Json $Matches[1] [hashtable] $mapErrorCodes = @{ } foreach ($errorCode in ($errorCodes | Get-Member -MemberType NoteProperty)) { $mapErrorCodes.Add($errorCodes.($errorCode.Name), $errorCode.Name) } $Result.error | Add-Member codeName -MemberType NoteProperty -Value $mapErrorCodes[$Result.error.code] } } Write-Output $Result } } } # 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